I wouldn't class a Leo x bd as I hybrid I would class it as breeding a high grade Leo with a low grade Leo and the result is normally a better grade leo but not good enough to be called a bd
One of the rays is better than the other
With most black rays the males normally look better than females
I would just say Leo when they mate. If you cant prove they are a true BD Leo cross then play it safe and just Call them Leos... Which they are anyways